Dual Walbro 255lph Pump Install Pictures

[socks]

So, alot of people have been asking for this, its some of the details of my Dual Walbro install.

This highlights the fuel pump side of the install. I'm not going to get into part lists, they are on here already, and I didnt do the R&D, so I'm gonna leave that to vivid if he wants detailed lists out there. You can look at the pics to see what was used.

To remove the basket without dropping the tank, you have to cut the access hole under the rear seat a little larger. Youll see pics of that at the end.

Once you get the basket out, you pretty much completely disassemble it.

This is where the pictures start. You must make a new bulkhead for each of the tanks. You'll see how i did it here:



Then, make sure to prep all your fittings well. I used russell thread seal on all the fittings, and about half of them leaked. Thus the reason i took the basket out again today, and thus the reason you now have pictures.


The pumps hold themselves in nicely. Theres a venturi system in this basket to fill the basket at low tank levels. I used the return line to feed that venturi. Stock it uses the pumps output/regulator



This is with the basket back in and the -6an lines hooked up.


Ill post how this goes from here to the engine later.

-Sean

[SSinstaller]

Originally Posted by socks So, alot of people have been asking for this, its some of the details of my Dual Walbro install. This highlights the fuel pump side of the install. I'm not going to get into part lists, they are on here already, and I didnt do the R&D, so I'm gonna leave that to vivid if he wants detailed lists out there. You can look at the pics to see what was used. To remove the basket without dropping the tank, you have to cut the access hole under the rear seat a little larger. Youll see pics of that at the end. Once you get the basket out, you pretty much completely disassemble it. This is where the pictures start. You must make a new bulkhead for each of the tanks. You'll see how i did it here: Then, make sure to prep all your fittings well. I used russell thread seal on all the fittings, and about half of them leaked. Thus the reason i took the basket out again today, and thus the reason you now have pictures. The pumps hold themselves in nicely. Theres a venturi system in this basket to fill the basket at low tank levels. I used the return line to feed that venturi. Stock it uses the pumps output/regulator This is with the basket back in and the -6an lines hooked up. Ill post how this goes from here to the engine later. -Sean

Looks very nice.

[socks]

Oops, left out the last pic. Will add later.

[Blackspeed]

I though it was a no-no to have sealer tape on the tapered part of the fitting?

[socks]

Originally Posted by Blackspeed I though it was a no-no to have sealer tape on the tapered part of the fitting?

I threaded the fitting on one thread, and took it off, this cut that excess off...

Originally Posted by flyrevs2 why do you need this ? running out of fuel ?

No, I was running nitrous, with the nitrous i was running out of fuel, so i did this. Since, i have decided not to continue running the nitrous.

This will be nice when its time to start upping the DI pressure.

[flyrevs2]

why do you need this ? running out of fuel ?

[djuosnteisn]

That time should be coming soon I'll test the ckts tonight at work, and hopefully send them out tomorrow.

[06Speed6]

Nice parts.

Ive been really interested in this, its too bad that lotsa people jumped all over Vivid to the point that they dont post anymore.

[bmman93]

they are very busy in there shop! they are working to get this stuff figured out. i talk to the owner of the car at least once a week and bust his balls about his car not being done

[06Speed6]

Originally Posted by bmman93 they are very busy in there shop! they are working to get this stuff figured out. i talk to the owner of the car at least once a week and bust his balls about his car not being done

Nice, keep a fire under them for me.

[socks]

Last pic added.

Also, you can hear these pumps.

I was a bit concerned with cutting the hole bigger under the seat. I knew i'd lose the plate that covers it. I thought it would cause excess road noise to enter the cabin. With a seat in there though, there really is no difference, other than the pump noises, which are minimal.

Once im SURE everything is situated, i might weld the piece i cut out back in, so that i can use the plate. Im not sure if i even care to though. It concerns me more to have a welder right over the tank than it does to not have that plate there.

[Sport6]

My buddy just did a single install on his big turbo Saab and had to make the hole larger in the backseat too. He riveted a piece of sheet metal back over it after the fact.

Nice install though, good to know it works if needed.

[Blackspeed]

^^^either do that or just use some good ol' JB weld

[DevilsOwn]

good write up. I just want to point out that an fittings are not suposta have any teflon tape or paste used on them. They are intended to be a dry seal. npt threads side of the fittings howerver must use it.

[socks]

Originally Posted by DevilsOwn good write up. I just want to point out that an fittings are not suposta have any teflon tape or paste used on them. They are intended to be a dry seal. npt threads side of the fittings howerver must use it.

I used this. it leaked at about half the fittings. I took it apart, cleaned them up, and put thread tape, not a single one of them leaks now. I cut the tape off the tapered part of the fittings, so i think its in good shape now.

-Sean

[Speedie6]

Sorry for ignorance. I don't know what I'm looking at, I haven't worked on the fuel pump as yet. But, I understand from the writeup that the pump(s) are in a "basket" under the rear seat. So, I guess you pull the rear seat. Then, you cut the hole bigger with some kind of jig saw. Hopefully you can see well enough to not cut anything accidentally?

There is a reference to "tanks" and "dual fuel pumps". Huh? Wha? We got two fuel tanks and two pumps? I'm not getting this at all.

I see more than one pump at Summit Racing described as being 255 LPH. There is a reference to a possible parts list by Vivid. Any links/details?

[superskaterxes]

Originally Posted by Speedie6 Sorry for ignorance. I don't know what I'm looking at, I haven't worked on the fuel pump as yet. But, I understand from the writeup that the pump(s) are in a "basket" under the rear seat. So, I guess you pull the rear seat. Then, you cut the hole bigger with some kind of jig saw. Hopefully you can see well enough to not cut anything accidentally? There is a reference to "tanks" and "dual fuel pumps". Huh? Wha? We got two fuel tanks and two pumps? I'm not getting this at all. I see more than one pump at Summit Racing described as being 255 LPH. There is a reference to a possible parts list by Vivid. Any links/details?

we only have 1 pump stock but sean upgraded to two pumps using the stock basket. that basket sits in the gas tank and sucks up fuel to feed the CDFP.

sean why dont u just get some sheet metal and cut it to size and screw it back in around the hole? that way if u have a problem u can still access it and dont needa worry about shit getting up in there from the bottom.

[Speedie6]

Originally Posted by superskaterxes we only have 1 pump stock but sean upgraded to two pumps using the stock basket.

Huh. I know our DI has unique fueling needs. But, do we really need two 255 lph pumps? How much fuel can we use, at, say 350 WHP? Or even 400 if anyone has got there? I know this is the low pressure pump, but, what is the goal for the PSI on this? ETA: what are the specs on the stock pump?

Originally Posted by superskaterxes sean why dont u just get some sheet metal and cut it to size and screw it back in around the hole? that way if u have a problem u can still access it and dont needa worry about shit getting up in there from the bottom.

+1 If I do this mod, I'll do that.

[socks]

Originally Posted by Speedie6 Huh. I know our DI has unique fueling needs. But, do we really need two 255 lph pumps? How much fuel can we use, at, say 350 WHP? Or even 400 if anyone has got there? I know this is the low pressure pump, but, what is the goal for the PSI on this? ETA: what are the specs on the stock pump? +1 If I do this mod, I'll do that.

The stock pump is somewhere between 155 and 200lph.

I was running a wet nitrous kit, and running out of fuel at 430ish wheel hp.

i went with two, in all honesty, because 1 doesnt fit in there securely. 2 hold eachother in. lol.

plus, that gives me ALOT of headroom on that end.

I'm running 80psi in the low pressure system.

[Speedie6]

Originally Posted by socks I was running a wet nitrous kit, and running out of fuel at 430ish wheel hp.

Shit! I didn't know anybody getting those kinds of numbers. Nor did I know anybody was running NOS. Stock block?

Originally Posted by socks i went with two, in all honesty, because 1 doesnt fit in there securely. 2 hold eachother in. lol. plus, that gives me ALOT of headroom on that end. I'm running 80psi in the low pressure system.

Well, yeah, you should have plenty of headroom. When you run the two pumps, do they double the PSI?

[superskaterxes]

i guess after going through all that work u might as well do 2 pumps then 1 cause it doesent cost that much more and the fuel is always there if u need it later down the line.

[socks]

No, you run a fuel pressure regulator to get desired pressure.

No, my motor is built, and 8.8:1 compression.

[Speedie6]

Originally Posted by socks No, you run a fuel pressure regulator to get desired pressure.

Ah, okay.

Originally Posted by socks No, my motor is built, and 8.8:1 compression.

Cool.

[aminzer]

another reason this kit was designed was because us at vivid currently have a speed 3 that were buiilding with a secondary port injection rail, so we were gonna need the added fuel pressure for those injectors

[Jarods7920]

Socks do you know what the line pressure is comming out of the pumps? I am about to spray a 100 wet on my car along with an upgraded turbo. Also do you have any pics of the set up, up to the engine?

[socks]

I dont know the pressure out of the pumps. I do know its easily over 100psi.

I have it regulated down to 80.

I dont have pics, ill try to take some. car is a hot mess right now waiting for a new manifold and downpipe.

-Sean

[aviator79]

To remove the basket did you use the tool or somethin else? I just learned the tool actually presses on some tabs so that the "nut" can be rotated. Any insight on that?
I cant find the info on what pumps. You said is on here but I cant find it...

[socks]

necrobumped for all the recent discussion on this topic

Originally Posted by aviator79 To remove the basket did you use the tool or somethin else? I just learned the tool actually presses on some tabs so that the "nut" can be rotated. Any insight on that? I cant find the info on what pumps. You said is on here but I cant find it...

actually, i used a hammer and big flathead. those "tabs" will bend over backwards multiple times before ever breaking off. i question how effective they would be in preventing the "nut" from backing off anyways. I never had an issue, just made sure the lid was on as tight as it came off.

[essejkcamraw]

I don't know how I ever missed this thread but, this should come in handy for me very soon

[eroler1]

Holy thread revival, apologies, but how was the Venturi setup again? So the stock feed line is going back inside connected to the metal rod that is in the side of the basket right? And inside the hose that is connected inside the stock feed have a looks like a tee fitting? In the middle of the pump? Trying to copy this setup but confused right now